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2017年下半年 上午试卷 综合知识
第 71 题
关键词 HTTP  
章/节 专业英语  
 
 
The Hypertext Transfer Protocol , the Web's (71)protocol , is at the heart of the Web. HTTP is implemented in two programs : a(72) program and a server program . The client program and server program, executing on different end systems , talk to each other by(73)HTTP messages . HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients . when a user (74) a web page , the browser sends HTTP request messages for the objects in the page to the server . The server (75) the requests and responds with HTTP response messages that contain the objects .
 
  A.  transport-layer
 
  B.  application-layer
 
  C.  network-layer
 
  D.  link-layer




 
 
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